Will this scanner work for my 2005e320 cdi, and is it the best choice? Basically I want to be able to know what's up; if every things ok and if not what the problem is so I can decide whether I can handle it.
I also want to know if my 97e320 will pass smog and if not why not. It's $70 at the station just to find out. The scanner is $160 on Amazon.